Lincoln, A. (1860). “The Republican Party vindicated – the demands of the South explained: Speech of Hon. Abraham Lincoln of Illinois, at the Cooper Institute, New York City,” in the Lincoln Financial Foundation Collection [online]. Allen County Public Library, Fort Wayne, Indiana. http://www.lincolncollection.org/search/results/item/?q=cooper+union+address&item=34681 (=A)

The copy-text is the Tribune Tract which was edited and circulated by the Young Men’s Republican Union. Primary editors include Abraham Lincoln, Charles C. Nott, and Cephas Brainerd. This selection was based on the widespread circulation of the pamphlet as well as the clarity provided in the source. The footnotes added by Nott and Brainerd have been omitted for the purpose of simplicity. Version B is New York Times copy of the published speech. Version C appeared in the New York Herald. It is the only surviving version which accounts for the audience reactions to the speech. Applause, and the like, has been included in the footnotes so as not to detract from the easy reading of the speech. Version A was followed for spelling, paragraphing, capitalization, punctuation and italics.